Type-writing machine.



No. 852,799. PATENTED MAY 7, 1907. M. w. POOL.

TYPE WRITING MACHINE.

APPLICATION FILED 00T- s. 1906.

' 2 SHEETS-SHEET 1.

IIIIIIIII '\/\/|TNE55E5= I INVENTUR:

} If m 1-1 5 ATTEIRNEYV No 852,799. PATENTED MAY 7, 19071 M. W. POOL. TYPE WRITING MACHINE.

APPLICATION FILED OUT. 8. 1906.

2 sums-sum 2.

WITNESSES: INVENTEIR:

mflw W 'I-IIE TTEJRNEY UNITED STATES gnTENT OFFIOE.

MORRIs W. POOL, OF BROOKLYN, NEW YORK, Assion OR TO THE MONAROH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WORITING MACHINE.

Specification of Letters Patent.

Patented May 7,1907.

Application'filed October 8,1906. Serial No 338,006.

To all whom it may concern:

Be it-known that I, MORRIS W. POOL, a

, citizen ofthe United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

v I 'My inventlon relates more especlally to ribbon mechanism for typewriting machines and ,it has for its main object to provide an improved construction wherein a ribbon normally removed from the printing point and having a plurality Of fields of different characteristics may be controlled so that it may, when the printing keys are actuated, be moved to cover the printing point with any desired field.

Although especially designed for the ob- ]ject stated, my invention may in addition be employed advantageously with ribbons of uniform character throughout in order to make use of substantially the entire width of such uniform ribbons.

My invention also .includes means for throwing the ribbon out of operation, so that j arts hereinafter fully described and particuarly pointed out in the claims.

I have shown my invention as applied to the Monarch typewriter, but it is to be understood that said invention may be adapted to other styles of writing machines.

In carryingout my invention in the present instance I substitute for the usual vibratory operating lever of the Monarch machine, which lever has a'slot in its rear arm; an operating lever which is constantly connected at a fixed distance from its fulcrum with the upper end of a vertically disposed link. The lower end of said link is forked or bifurcated, the arms of the bifurcation being provided with openings which are adapted 'to oo-operate with pins oppositely disposed on the central .rearwardly extending arm of the usual pivoted universal bar frame, said pins being I at different distances fromthe pivotal axis of said universal bar frame.

:a'manually operated slide or cross-bar which I further provide guides said link and controls its position transversely of the central arm of said frame. By adjusting the slide bar the forked link may be connected with one or another of the pins on the universal bar frame, so as to vary the throw of the ribbon carrier or may be entirely disconnected from said frame when it is desired to do mimeograph work.

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of a typewriting machine, illustrating one form of my invention, parts of said machine being omitted. Figs. 2, 3 and 4 are enlarged fragmentary top plan views illustrating different relations between the forked link and the universal bar with which it is adapted to be connected and disconnected. Fig. 5 is a transverse vertical sectional view of the machine'taken on a plane forward of the top plate, parts being omitted.

Referring more especially to Figs. 1 and 5 of the drawings,;1 designates the base of the machine from which rise corner posts 2 supporting a top plate 3. Key levers 4 are fulcruined on a fulcrum plate 5 in the rear of the base, each key lever being provided with a restoring spring 6 and having pivoted to it at 7 a sub-lever 8. The lower end portion of each sub-lever is slotted to co-operate with a fixed abutment or fulcrum bar 9 and the upper end of each sub-lever is connected by a link 10 with-a type bar 11. The type bars are, pivoted in hangers 12 arranged in segmental series on'a segmental type bar support 13. Said type bars are normally sup-- ported at their free end portions on a type rest 14 and are adapted, when their associate key levers are actuated, to co-operate with the front face of a platen 15 mountedin a carrier or carriage comprising side bars 16 joined at the rear by a slide bar 17, the latter being grooved at its top and bottom to co-operate with anti-friction balls 18. Said balls also cooperate with grooved guide rails 19 which are fixed to standards 20 rising from the top plate. The platen carriage carries a feed rack 21 which normally meshes with a feed pinion 22, the latter being operatively connected witha toothed escapement wheel 23.," Feed dogs 24 co-operate with said escapement wheel, said dogs being mounted at-ithe top of a pivoted vibratory dog carrier or rocker'25 having a horizontally disposed arm 26 which is connected by a link 27 with a'centoo . tral .extension or rearwardly extending arm 1 28 of a universal bar frame, the latter comprising also a rock shaft 29 pivoted on pivots 30 secured in the sides of the base. Side arms 31 extend rearwardly from the rock shaft 29 near its ends, said side arms and the central arm 28 being joined by a universal bar proper 32 the latter extending from side to side be- Death the key levers 4. When one of the lat- I ter is operated the universal bar frame is swung downwardly on the pivots 30, causing the letter feeding or escapement devices to co-operate in a known manner to permit the -carriage to be drawn a-letter space distance to the left under the influence of a spring drum 33 with-which said carriage. is connected by a band or strap 34. A ribbon 35 is wound upon a pair of ribbon spools 36, one disposed horizontally at each side of-the machine forwardly of the platen and above the top plate. The ribbon is or may be divided into longitudinal stripes. or fields a and b of different characteristics;

that is' to say, the field a may be of one color' i and the field b of a different-color-black and red respectively, for example or the field a may be record ribbon and the field 6 copying ribbon. -.The ribbon may befed longitudinally-back and forth between the spools by any suitable ribbon feeding mechanism, that shown in the drawings being the usual ribbon mechanism of the Monarch typewriter and portion ofsaid link or bifurcated to embrace loosely the central extension or arm 28 of the universal bar One arm 56 of the bifurcation at the: ower end of the link 55 lies at the right of the arm 28 and is vice or opening which is adapted to co-operate with and extending laterally rightward from the arm 28. portion of the link is offset rearwar'dly and toward the left, as shown frame.

with engaging device and extends laterally leftward from the arm 28 of the engaging from the bar frame 57, so that with its associate pin. an inspection of Figs. 25 that thearms 56 and 58 are spread apart laterally so far that when one arm is connected with its associate pin the other arm will be disconnected from ink depends from the rivet 54 and the lower is flattened and forked provided with an engaging dean engaging device or pin 57 fixed to The other arm 58 of the bifurcated in Figs. 14, and

s then curved downwardly being provided an engaging device or opening near its ower end, said opening co-operating with an or pin 59 which is fixed-to universal bar frame. The pin or device 59 is at a greater distance center of rotation of the universal when the arm 58 is connectedwith ts associate pin, the link 55 will receive a greater movement when the universal bar frame is operated by the key levers than said inkwill receive when the arm 56 is connected It will be noted from comprising for each ribbon spool a beveled its pin. The pin or rivet 54 is sufficiently gear 37 operatively connected with its assoloose to permit of the movement of the lower ciate spool and meshing with a beveled pinend portion of the link 55 transversely of the ion 38 at the forward end of a horizontal shaft 39 said shaft carrying at its rear end a beveled pinion 40. Each pinion 40 is adapted to mesh with a driv'ng pinion 41 fixed to 4 a driving shaft 42, the latter being connected with and receiving motion from'th'e spring drum 33 through two beveled gears 43 and 44, the construction being such that the shaft may be moved endwise without affect ing the connection between said gears. The endWise movement of the driving shaft 'operates to connect one or the other of the driving pinions 41 with its associate pinion 40 and to cause'one or the other of the ribbon spools to 5 wind the ribbon thereon.

- That portion of the ribbon which extends between the spools is normally held below the printing point by a vibratory ribbon carrier or ribbon vibrator 45 which is guided and supported in the u right arms 46 of a guide bracket 47 secured byfscrews 48 to the to late. The lower end or. stem 49 of the v1- rator is slotted and provided with a cross pin 50 which co-operates with the slotted forward end of an operating lever 51 pivoted at 52 to a lug 53 depending from the top late. The rear arm of the lever is erforate and receives a rivet 54 by which t e lever is connected at a fixed distance from its fulcrum 5 with a connecting member'or link 55. The

tance' of which said arm 28 t5 bring one or another of the engagng devices or openings atthe lower ends of the arms 56 and 58 into cooperative engagement with the associate engaging devices or pins on said arm. tween the arms 56 and 58 is such that when the link has been shifted or moved transversely of the arm 28 about half of the dis I link is capable of being shifted, said link will beentirely disengaged from the arm 28 as the universal bar frame may be actuated without affecting the link 55.

The distance laterally be shown in Fig. 3 so that In order to shift .the link 55 at will and to slide rod 60 arranged transversely of the r e sides About at its middle the slide 62 which normally receives the attened 1portion of the link 55 above rounded up ink 55 may be assed from bel ow before-the upper end of saidl'ink is connected with the operating lever 51. i

The length of the slot 62 To facilitate assembling wide circular portion 63-; er part of the than is the pin or engaging device frame the right-hand end of the slide rod 60 is provided with a finger button or cap 64 to enable it to be readily manipulated and inside the frame the right-hand end portion of the slide rod has secured to it a collar 65 which prevents accidental withdrawal or re moval of the slide rod from its place. The under side of the slide rod is provided with three notches or depressions 66, 67 and 68 which are cooperative with the free end of a spring detent 69 secured by screws 70 to the inner face of the right hand side of the base. The detent 69 co-operates with the notches in the slide rod to maintain it and through it the link 55, in any of the positions in which it may be desired to set the latter.

Referring now to the operation of the devices hereinbefore described, and assuming that the parts are arranged as in'Fig. 5 with,

the detent69 engaging with the right-hand notch 66, it will be seen that the slide rod is maintained in the leftmost of its adjusted positions. The parts are so constructed and arranged that this adjustment of the slide rod causes an engagement between the opening in the arm 56 and th estud or pin 57 as shown both in Figs. 5 and 2. The pin 57 is arranged at such a distance from the pivotal axis of the universal bar frame that when the latter is operated by any of the key levers the vibratory ribbon carrier will be thrown upward far enough to bring the upper field a of the ribbon opposite the printing point. The throw of the ribbon carrier will remain the same as long as the actuating link is set as describedand the type impressions will therefore follow in a path on the upper field a of the ribbon and longitudinally. thereof. During the actu'ations of the universal bar frame it will be understood that the link 55 is reciprocated in a general up and down direction, being guided by the opening or slot 62 in the flat portion 61 of the slide rod and being so controlled by the guide opening that it is prevented from moving laterally and thereby changing its lateral relation with the central arm 28 of the universal bar frame.

When it may be desired to make use-of the lower field b of'the ribbon the 'slide rod 60 is pulled longitudinally rightward until the notch 68 engages with the detent 69. This movement of the slide rod serves to shift or swing .the lowerend of the link 55 transversely of the arm 28 of the universal bar frame from the position shown in Fig. 2 to that shown in Fig. 4'. From an inspection of the'latter fig: ure it will be noted that the arm 56 has been disconnected fromthe universal bar frame and that the arm 58 is engaged with the pin orengaging device 59. To facilitate the-engagement between the openings in the forked end of the link and the pins 57 and 59, the latter are preferably tapered at their ends, as shown for examplein big. 4. With the arm 58 engaged with the pin 59, it will be seen that the link 55 is thereby connected with the universal bar frame at a greater distance from the pivotal axis of the latter than before. The result is that an increased amount of movement istransmitted to the link 55 rier when the universal bar frame'is operated, and consequently said ribbon carrier is thrown higher at said operation. The parts are so proportioned that the increased throw a of the ribbon carrier will bring the lower field .b of the ribbon op ositethe printing point, and as long as the ink 55 is set as shown in Fig. 4 the throw or extent of movement of the carrier will remain the same and the type impressions will follow in a ath along the lower field b of the ribbon and longitudinally thereof.

When it isdesired to dispense with the 'use of the ribbon, as in preparing a mimeograph sheet, for example, the slide rod 60 is adjusted to bring the middle notch 67 into engagement with the detent 69. This movement of theslide rod swings the link to the position it will be seen that neither of the arms of said link is engaged with its associate pin so that said link is entirely disconnected from the central arm or member 28 of the universal bar frame and will not be affected by the operation of the latter.

Various changes may be made without departing from the spirit and. scope of my invention. v

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a vibratory ribbon carrier; operating means therefor including a link; a pivoted key-actuated universal bar frame having a central arm; and means for shifting sa1d link at will transversely of said central arm in orderto connect the link therewith at different distances from the pivotal axis of the universal bar frame and thereby vary the throw of the ribbon carrier.

2. In a typewriting machine, the combination of a vibratory ribbon carrier; an operating lever therefor an actuating .link connected at one end with said operating end; a pivoted key-actuated'universal barframe having a, central arm embraced or' straddled by the forked end of said link; and means for shifting saidlink to. connect one or another ofthe arms composing its fork with the central arm of the universal bar frame at different distances from -the pivotal axisthereof in order to vary the throw of. the ribbon carrier.

and through it to the vibratory ribbon carshown in Fig. 3, from an inspection of which 5 lev'er'and bifurcated or forked at its other 1 said link, said slide bar being operative to 3 I 3 In atypewriting machine, the combina-tlon ofa vibratory ribbon carrier; an operating lever. therefor; an actuating link connected with and depending from said lever,- said link terminating at its lower end in two arms {arranged in different planes both fore and? aft of the machineand transversely thereof; a' pivoted key-actuated universal.

bar'fi'am'ehaving a lpart arranged between the'arms of said hn and means for con- 'necting' at will one or another of the arms of said linkwi th said part of the universal bar frame atdifl'erent distances from the pivotal axis ofsaid frame in order to vary the throw of the ribbon carrier.

4. In a typewriting machine, the combination of a vibratory ribbon carrier; an operatin lever therefor; an actuating link having aorked' end, the arms comprising said forked end being provided with engagin Openings; apivoted key-actuated universa bar frame having a central arm embraced by the forked endof said lin'k, said central arm having lateral oppositely disposed en aging 1 pins at' difierent distances from its fu crum,

each engaging pinbeing co-operative with one of the enga'ing openings in said link; and a slide bar or guiding and controlling shift said link to effect van enga ement of one or another of its arms with the central armof the universal bar frame.

v 5. In a typewriting machine, the combination of a vibratory ribbon carrier; an operating lever therefor; a pivoted key-actuated universal bar frame; a link connecting said universal .bar frame with said operating 6. In'a typewriting machine, the combiQ nationof a vibratory ribbon carrier; an operating lever therefor; a pivoted key-actuated universal bar-frame; a link connecting said universal bar frame and said operating lever; and means for varyingthepoint of connection between said link and said universal bar frame and for disconnectin said link entirely from said universal bar frame.

7. In a typewritingmachine, the combination of a vibratory ribbon carrier; an operating lever therefor; a link connected at one end wlth said operating lever and forked at its other end; a pivoted key-actuated universal bar" frame having a part embraced or arranged between the arms composing the fork of said link; and means for shlfting said link to engage one or another ofits arms with the embraced part of said universal bar frame, said means being'also operative to entirely disconnect said link "from said universal "bar frame. I

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 6th day of 0ctober, A. ,D. 1906.

MORRIS w. POOL.

Witnesses:

J. B. DEEvEs, M. F. HANNIVEHER. 

